Operational Amplifiers And its applications
- 1. And Applications DEBOJYOTI ADHIKARI ETCE ,3RD YEAR ROLL NO-28 OPERATIONAL AMPLIFIER
- 2. INTRODUCTION: LDR SENSOR SOUND SENSOR AC CURRENT SENSOR
- 3. What is Operational Amplifier (Op-amp)? Karl D. Swartzel Jr. A direct coupled high gain amplifier consisting of one or more differential amplifier and followed by a level translator and an output stage. OP – AMP OPERATIONAL AMPLIFIER 1967 Karl D. Swartzel Jr. introduces op-amp that was to become the industry standard. Op-amp had their origins in analog computer.
- 4. INVERTING INPUT NON- INVERTING INPUT INPUT STAGE INTERMEDIATE STAGE LEVEL SHIFTING STAGE OUTPUT STAGE OUTPUT Internal block of Operational Amplifier
- 5. It is Dual Line in Package IC(DIP).There are total 8 pins in this IC. DIP is the most common package form. It consists of an array of transistors , resistors and capacitor on a single silicon chip. Non-inverting inverting
- 6. SL NO MODEL NO SPECIFICATION MANUFACTURER COST(APPROX.) COST IN RUPEES ₹ PRODUCT VIEW 01 LM386 8 PIN,DIP,LO W VOLTAGE AMPLIFIER TEXAS INSTRUMENT 26 02 LM741 8 PIN,CDIP, COMPARATOR, AMPLIFIER NATIONAL INSTRUMENT 15 03 LM358 PDIP, 8 PIN, LOGIC CONTROLLER TEXAS INSTRUMENT 20 04 LM324 14 PIN, PDIP TEXAS INSTRUMENT 29 05 OP07 8 PIN PDIP,NOISE CKT,AMPLIFIER ANALOG DEVICES 18 LIST OF OP-AMP IC: Various types of Op-amp IC are available in the market. Following op-amp IC are most common:-
- 7. SL NO CHARACTERISTICS IDEAL OP-AMP PRACTICAL OP-AMP 01 Input impedance High 02 Output impedance 0 Low 03 Open loop gain 103 – 106 04 Slew rate Finite 05 Bandwidth Finite 06 CMRR (COMMON MODE REJECTION RATIO) Finite CHARACTERISICS OF OP-AMP:
- 8. CONFIGURATION OF OP-AMP It has mainly two types of Configuration. 1. Open loop Configuration i. Inverting Mode ii. Non-inverting Mode iii. Differential Mode Differential OP-AMP
- 9. i. Inverting Mode ii. Non-inverting Mode iii. Differential Mode Non-inverting OP-AMP Inverting OP-AMP CLOSE LOOP CONFIGURATION:
- 10. MATHEMATICAL OPERATION (ADDER, SUBTRACTOR ETC.) LOGICAL OPERATION (COMPARATOR) AMPLIFIER WAVEFORM GENERATOR(SIGNAL PROCESSING AND CONDITIONING) FUNCTIONAL OPERATION(CLIPPER , CLAMPER ETC.) APPLICATION OF OP-AMP
- 11. VOLTAGE FOLLOWER INTEGRATOR COMPARATOR FEW USES OF OP-AMP: USE IN 555 TIMER IC
- 12. OP-AMP AS AN ACTIVE FILTER: An active filter is a type of analog circuit implementing an electronic filter using active components, typically an amplifier. It is mainly classified into four types depend on their band of frequencies.: 1.Active LPF 2.Active HPF 3.Active BPF 4.Active BSF
- 13. ADVANTAGES OF OP-AMP: 1. Simplicity of design. 2. Lower parts Count. 3. Low noise. 4. Low cost. LIMITATION OF OP-AMP: 1. Low efficiency. 2. Can’t process high power signal.
- 14. CONCLUSION CONCLUSION • Operational amplifier have been discovered long early age of 1968 .After a long journey of all most half a century operational amplifier still proving worthy today. Examples integrator,voltage follower,comparator etc So from that point of view we can imagine how important the development of op-amp was. Without this operational amplifier a large portion electronic circuitry can not be possible.
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